window.onload = function () {
    //获取需要用到的元素
    // var box = document.getElementById("box");
    // var inner = document.getElementById("inner");
    // var offset = inner.getAttribute("stroke-dashoffset");
    var percent = document.getElementById("percent");
    var count = 0;
    var time = setInterval(function () {
        count++;
        percent.innerHTML = count + "%";
        if (count === 100) {
            clearInterval(time);
        }
    }, 90);
}
